Sliding wear resistance of iron aluminides

[摘要] Room temperature dry sliding wear behaviour of iron aluminides containing 28% aluminium and various amounts of chromium has been investigated using pin on disk wear tester. The aluminides were heat treated to have ordered 𝐷ð‘�??₃ structure. It was found that wear rate of the aluminides increased with the increase of applied normal load and sliding speed. Wear resistance of the aluminides increased with increase in chromium content. SEM observation of the worn surface showed that the microcutting and microploughing were the dominant sliding wear mechanisms.

[学科分类] 材料工程

[关键词] Iron aluminide;sliding wear;wear;intermetallics;Fe3Al;ordered structures.